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SPHINK语音识别系统综述

南邮科技译丛 1991年第3期 1-9页

作者： lee,kf 杨景

Frequent amplification of a chr19q13.41 microRNA polycistron in aggressive primitive neuroectodermal brain tumors

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中国神经肿瘤杂志 2009年第4期7卷 259-259页

作者： Li M lee kf Lu Y Clarke I Shih D Eberhart C Collins VP Van Meter T Picard D Zhou L Boutros PC Modena P Liang ML Scherer SW Bouffet E Rutka JT Pomeroy SL Lau CC Taylor MD Gajjar A Dirks PB Hawkins CE Huang A. Division of Hematology-Oncology Hospital for Sick Children Toronto ON MSG OA J Canada.

We discovered a high-level amplicon involving the ehrl9ql3.41 microRNA (miRNA) duster (C19MC) in 11/45 (approximately 25%) primary CNS-PNET, which results in striking overexpression of nfiR-517c and 520g. Constitutive expression of miR-517c or 520g protnotes in vitro and in vivo oncogenicity, modulates cell survival, and robustly enhances growth of untransformed human neural stem cells (hNSCs) in part by upregulating WNT pathway signaling and restricting differentiation of hNSCs.

关键词：脑肿瘤癌症治疗化疗

Micro-Gravity-Induced Systemic Deterioration of Musculoskeletal System and Development of Preventive Strategy-A Rat Tail Suspension Model

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Micro-Gravity-Induced Systemic Deterioration of Musculoskele...

中国空间科学学会第七次学术年会

作者： Leung KS Tam kf Ng Eric lee KH Cheung HW Department of Orthopaedics and Traumatology The Chinese University of Hong Kong

＜正＞BACKGROUND and PURPOSE:Prolonged exposure to microgravity may cause systemic problems to all body systems,including the relevant musculoskeletal *** studies concentrated on either bone loss or muscle *** current... 详细信息

关键词： Rats Tail suspention Bone Skeletal muslce Bone-tendon junction

来源： cnki会议评论

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放置宫内节育器时抗生素的预防性应用

生殖与避孕 2005年第9期25卷 561-563页

作者： Grimes DA Schulz kf 童传良单位不详

1背景因担心上生殖道感染(盆腔炎)的危险性,宫内节育器这种高效的避孕方法未能得到广泛的应用.研究发现在人工流产前后预防性应用抗生素能明显地降低放置IUD后患子宫内膜炎的危险性(Sawaya1996).由于与IUD有关的感染往往发生在放置后的... 详细信息

1背景因担心上生殖道感染(盆腔炎)的危险性,宫内节育器这种高效的避孕方法未能得到广泛的应用.研究发现在人工流产前后预防性应用抗生素能明显地降低放置IUD后患子宫内膜炎的危险性(Sawaya1996).由于与IUD有关的感染往往发生在放置后的几周到几个月以内(lee 1983,Farley 1992),从而推断放置IUD时对宫腔的污染可能是致病的主要原因,而不是宫内节育器或其尾丝本身(Mishell 1966).因此,放置IUD前服用抗生素可能减少因放置时向宫腔被动性导入细菌而引起的上生殖道感染的危险性.

关键词：预防性应用抗生素放置宫内节育器上生殖道感染放置IUD 子宫内膜炎避孕方法研究发现盆腔炎被动性抗生索

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GPS Vector Tracking Receivers with Rate Detector for Integrity Monitoring

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Computers, Materials & Continua 2021年第11期69卷 2387-2403页

作者： Dah-Jing Jwo Ming-Hsuan lee Department of Communications Navigation and Control EngineeringTaiwan Ocean UniversityKeelung202301TaiwanChina

In this paper,the integrity monitoring algorithm based on a Kalman filter(kf)based rate detector is employed in the vector tracking loop(VTL)of the Global Positioning System(GPS)*** the VTL approach,the extended Kalman filter(Ekf)simultaneously tracks the received signals and estimates the receiver’s position,velocity,*** contrast to the scalar tracking loop(STL)that uses the independent parallel tracking loop approach,the VTL technique uses the correlation of each satellite signal and user dynamics and thus reduces the risk of loss lock of *** the VTL scheme provides several important advantages,the failure of tracking in one channel may affect the entire system and lead to loss of lock on all *** integrity monitoring algorithm can be adopted for robustness *** general,the standard integrity monitoring algorithm can timely detect the step type erroneous ***,in the presence of ramp type slowly growing erroneous signals,detection of such type of error takes much more time since the error cannot be detected until the cumulative exceeds the specified *** integrity monitoring based on the rate detector possesses good potential for resolving such *** test statistic based on the pseudorange residual in association with the Ekf is applied for determination of whether the test statistic exceeds the allowable threshold *** fault detection and exclusion(FDE)mechanism can then be employed to exclude the hazardous erroneous signals for the abnormal satellites to assure normal operation of GPS *** of the integrity monitoring algorithm based on the Ekf based rate detector will be *** assessment and evaluation will be presented.

关键词： Global positioning system vector tracking loop integrity monitoring rate detector slowly growing errors

Evaluation of Heavy Rainfall Model Forecasts over the Korean Peninsula Using Different Physical Parameterization Schemes and Horizontal Resolution

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Advances in Atmospheric Sciences 2011年第6期28卷 1233-1245页

作者： Jeong-Gyun PARK Dong-Kyou lee Atmospheric Sciences Program School of Earth and Environmental Sciences Seoul National University Seoul 151-747 Korea

In this study, the accuracy of a Pennsylvania State University–National Center for Atmospheric Research mesoscale model （PSU/NCAR MM5） for predicting heavy summer precipitation over the Korean Peninsula was investigated. A total of 1800 simulations were performed using this model for 30 heavy rainfall events employing four cumulus parameterization schemes （CPS）, two grid-scale resolvable precipitation schemes （GRS）, and two planetary boundary layer （PBL） schemes in three model resolutions （90 km, 30 km, and 10 km）. The heavy rainfall events were mesoscale convective systems developed under the influence of mid-latitude baroclinic systems with low-level moisture transport from the ocean. The predictive accuracy for maximum rainfall was approximately 80% for 10-km resolution and was 60% for 30-km resolution. The predictive accuracy for rainfall position extended to ～150 km from the observed position for both resolutions. Simulated rainfall was most sensitive to CPS, then to PBL schemes, and then to GRS. In general, the Grell （GR） scheme and the Anthes and Kuo （AK） scheme showed a better prediction capability for heavy rainfall than did the Betts-Miller （BM） scheme and the Kain-Fritsch （kf） scheme. The GR scheme also performed well in the 24-h and 12-h precipitation predictions： the parameterized convective rainfall in GR is directly related to synoptic-scale forcing. The models without CPS performed better for rainfall amounts but worse for rainfall position than those with CPS. The MM5 model demonstrated substantial predictive capacity using synoptic-scale initial conditions and lateral boundary data because heavy summer rainfall in Korea occurs in a strong synoptic-scale environment.

关键词： heavy rainfall mesoscale convection mesoscale model evaluation convective parameterization

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The combined role of MRI prostate and prostate health index in improving detection of significant prostate cancer in a screening population of Chinese men

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Asian Journal of Andrology 2023年第6期25卷 674-679页

作者： Peter kf Chiu Thomas YT Lam Chi-Fai Ng Jeremy YC Teoh Carmen CM Cho Hiu-Yee Hung Cindy Hong Monique J Roobol Winnie CW Chu Samuel YS Wong Joseph JY Sung SH Ho Urology Centre Department of SurgeryThe Chinese University of Hong KongHong Kong SARChina The Jockey Club School of Public Health and Primary Care The Chinese University of Hong KongHong Kong SARChina Department of Imaging and Interventional Radiology The Chinese University of Hong KongHong Kong SARChina Erasmus MC Cancer Institute Erasmus Medical UniversityRotterdam 3015The Netherlands lee Kong Chian School of Medicine Nanyang Technological UniversitySingapore 308232Singapore

Using prostate-specific antigen(PSA)for prostate cancer(PCa)screening led to overinvestigation and overdiagnosis of indolent *** aimed to investigate the value of prostate health index(PHI)and magnetic resonance imaging(MRI)prostate in an Asian PCa screening *** aged 50–75 years were prospectively recruited from a community-based PSA screening *** with PSA 4.0–10.0 ng ml^(−1) had PHI result *** prostate was offered to men with PSA 4.0–50.0 ng ml−1.A systematic prostate biopsy was offered to men with PSA 4.0–9.9 ng ml^(−1) and PHI≥35,or PSA 10.0–50.0 ng ml^(−1).Additional targeted prostate biopsy was offered if they had PI-RADS score≥*** significant PCa(csPCa)was defined as the International Society of Urological Pathology(ISUP)grade group(GG)≥2 or ISUP GG 1 with involvement of≥30%of total systematic *** total,12.8%(196/1536)men had PSA≥4.0 ng ml^(−1).Among 194 men with PSA 4.0–50.0 ng ml^(−1),187(96.4%)received MRI *** them,28.3%(53/187)had PI-RADS≥3 ***,7.0%(107/1536)men were indicated for biopsy and 94.4%(101/107)men received *** the men received biopsy,PCa,ISUP GG≥2 PCa,and csPCa was diagnosed in 42(41.6%),24(23.8%),and 34(33.7%)men,*** with PSA/PHI pathway in men with PSA 4.0–50.0 ng ml^(−1),additional MRI increased diagnoses of PCa,ISUP GG≥2 PCa,and csPCa by 21.2%(from 33 to 40),22.2%(from 18 to 22),and 18.5%(from 27 to 32),*** benefit of additional MRI was only observed in PSA 4.0–10.0 ng ml^(−1),and the number of MRI needed to diagnose one additional ISUP GG≥2 PCa was 20 in PHI≥35 and 94 in PHI<*** them,45.4%(89/196)men with PSA≥4.0 ng ml^(−1) avoided unnecessary biopsy with the use of PHI and MRI.A screening algorithm with PSA,PHI,and MRI could effectively diagnose csPCa while reducing unnecessary *** benefit of MRI prostate was mainly observed in PSA 4.0–9.9 ng ml^(−1) and PHI≥35 *** was an important risk stratification step for PCa

关键词： magnetic resonance imaging prostate prostate cancer prostate health index prostate-specific antigen screening

Extended Kalman Filter-based localization algorithm by edge computing in Wireless Sensor Networks

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Digital Communications and Networks 2021年第2期7卷 187-195页

作者： Inam Ullah Siyu Qian Zhixiang Deng Jong-Hyouk lee College of Internet of Things(IoT)Engineering Hohai UniversityChangzhou Campus213022China Department of Computer and Information Security Sejong UniversitySeoul05006Republic of Korea

The Extended Kalman Filter(Ekf)has received abundant attention with the growing demands for robotic *** Ekf algorithm is more realistic in non-linear systems,which has an autonomous white noise in both the system and the estimation ***,in the field of engineering,most systems are ***,the Ekf attracts more attention than the Kalman Filter(kf).In this paper,we propose an Ekf-based localization algorithm by edge computing,and a mobile robot is used to update its location concerning the *** localization algorithm aims to achieve a high level of accuracy and wider *** proposed algorithm is helpful for the research related to the use of Ekf localization *** results demonstrate that,under the situations presented in the paper,the proposed localization algorithm is more accurate compared with the current state-of-the-art localization algorithms.

关键词： Extended Kalman filter Edge computing Kalman filter Localization Robots State estimation

Intent defined optical network with artificial intelligence-based automated operation and maintenance

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Science China(Information Sciences) 2020年第6期63卷 55-66页

作者： Hui YANG Kaixuan ZHAN Qiuyan YAO Xudong ZHAO Jie ZHANG Young lee State Key Laboratory of Information Photonics and Optical Communications Beijing University of Posts and Telecommunications Huawei Technologies Co. Ltd

Traditionally, the operation and maintenance of optical networks rely on the experience of engineers to configure network parameters, involving command-line interface, middle-ware scripting, and troubleshooting. However, with the emerging of newly B5 G applications, the traditional configuration cannot meet the requirement of real-time automatic configuration. Operators need a new configuration way without manual intervention at an underlying optical transport network. To cope with this issue, we propose an intent defined optical network(IDON) architecture toward artificial intelligence-based optical network automated operation and maintenance against service objective, by introducing a self-adapted generation and optimization(SAGO) policy in a customized manner. The IDON platform has three key innovations including intent-orient configuration translation, self-adapted generation and optimization policy, and close-loop intent guarantee operation. Focusing specifically on communication requirements, the IDON uses natural language processing to construct semantic graphs to understand, interact, and create the required network configuration. Then, deep reinforcement learning(DRL) is utilized to find the composition policy that satisfies the requirement of intent through the dynamic integration of fine-grained policies. Finally, the deep neural evolutionary network(DNEN) is introduced to achieve the intent guarantee at the milliseconds level. The feasibility and efficiency are verified on enhanced SDN testbed. Finally, we discuss several related challenges and opportunities for unveiling a promising upcoming future of intent defined optical network.

关键词： optical network artificial intelligence network automation intent defined network